1,720,995 research outputs found
Optimization of fresh–food supply chains in uncertain environments: an application to the meat-refrigeration process
No full textIn this paper we present a novel approach for the optimization of fresh-food supply chain by managing a trade-off between logistics and some index measuring the quality of the food itself. We propose an hybrid model of the chain, with a part constituted by a event–driven dynamics (the supply chain itself) and a part with time–driven dynamics (the dynamics of some parameters characterizing the jobs in the supply chain). The proposed framework is applied to a real–world example relative to the process of beef–carcasses refrigeration and distribution
Employer moral hazard and wage rigidity. The case of worker owned and investor owned firms
No full textThis paper studies wage and employment rigidity in a labor relationship in different organizational contexts. In investor owned firms, if the contract allows for flexible wages, the employer may have an incentive to opportunistically claim low demand and cut wages. Anticipating the employer's opportunism, workers may demand a fixed-wage contract, which may lead to inefficient layoffs in the presence of negative demand shocks. In contrast, in cooperatives, where the employer does respond to workers, the risk of employer's opportunism diminishes and results in an equilibrium characterized by more flexible wages and fewer layoffs. By developing these arguments we challenge the traditional explanation of workers' preference for fixed wages based on risk aversion. To support our claim, we develop a principal agent model in which there is incomplete information on both sides of the employment relation. We model both the case of investor-owned firms and worker cooperatives
Satisfaction with creativity: a study of organisational characteristics and individual motivations
Full text linkIn answering the question of what influences satisfaction for creativity in the workplace, this work takes into account the extent to which the organization supports human aspiration to creativity. The empirical model uses survey data encompassing over 4,000 workers in Italian social enterprises. Results show that satisfaction for creativity is supported, at organizational level, by teamwork-oriented action, including the quality of processes, relations and on-the job autonomy. At the individual level, satisfaction for creativity is enhanced by the strength of intrinsic and socially oriented motivations and by competence. The analysis of interaction terms shows that teamwork and workers' intrinsic motivations are complementary in enhancing the perception of creativity-enhancing work settings, while a high degree of required competences appears to substitute good relationships with superiorscreativity, job satisfaction, organizational processes, motivations, teamwork,autonomy, interpersonal relations
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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